Blockchain transaction data confirmed Tuesday that BlackRock transferred 5,847 Bitcoin, valued at approximately $450 million, to Coinbase Prime in 20 separate on-chain transactions. The supporting evidence appears in the source dataset.
The move drew immediate attention from institutional market watchers given the scale of the transfer and its timing against a backdrop of volatile Bitcoin prices.
Coinbase Prime serves as the institutional custody and trading arm that BlackRock uses to manage the Bitcoin backing its iShares Bitcoin Trust, ticker IBIT. The fund has grown to roughly $63 billion in assets since its January 2024 launch following SEC approval of spot Bitcoin ETFs in the United States.
What the Transfer Could Signal
A transfer of this size from BlackRock to Coinbase Prime does not automatically indicate an impending sale on the open market.
Analysts monitoring institutional wallet flows note it could reflect ETF redemption activity, routine portfolio rebalancing, or standard operational custody management for a fund of IBIT’s scale.
Bitcoin slipped to around $76,000 on Monday before recovering to near $77,000, according to CoinGecko price data. The brief dip added context to why a transfer of this magnitude attracted scrutiny from traders watching both price action and institutional wallet activity simultaneously.
Whale Wallet Growth Adds a Broader Signal
Separate on-chain data from Santiment shows the number of wallets holding at least 100 Bitcoin has risen to 20,229, an increase of roughly 11% from 18,191 wallets recorded a year earlier. Santiment shared the figures in a post on X, noting that wallets at this threshold currently hold assets valued at approximately $7.7 million or more each.
Wallets of that size are generally associated with institutional investors, high-net-worth holders, and entities classified as Bitcoin whales. The steady climb in their count over the past year persisted even during stretches of weakened retail sentiment and subdued smaller-account activity.
Market observers typically read sustained growth in large-wallet counts as a long-term accumulation signal, reflecting confidence in Bitcoin’s supply scarcity and future value among holders with the deepest conviction.
A mid-2025 survey of professional investors found that approximately 68% had already allocated or planned to gain Bitcoin exposure specifically through exchange-traded products, underscoring how institutional demand has increasingly concentrated around regulated vehicles like IBIT.
IBIT remains one of the largest ETF products in the digital asset space, and continued growth in its underlying assets makes periodic large transfers between custody addresses a routine, if closely watched, feature of its operational infrastructure.
Not Financial Advice: This article is for informational purposes only. Crypto investments are highly volatile. Always do your own research.
